广义两栖类导航范围以东柯克顿 Balanerpeton 样本及其 3.41±0.03 亿年前碎屑锆石最大沉积年龄约束作为老端证据锚点，以 0 Ma 的现生两栖类作为年轻端；最大沉积年龄不是化石直接测年、全球首现、现生两栖冠群年龄或直系祖先主张。
claim:taxon:amphibia:fossil-rangeThe temnospondyl amphibians from the Viséan of East Kirkton, West Lothian, Scotland
Milner, A.R.; Sequeira, S.E.K.
年份1993
来源角色primary-study
DOI / ID10.1017/S0263593300006155
适用范围
taxonomy · 拓扑 · range · 形态
Primary description of more than thirty Balanerpeton skeletons from the East Kirkton succession; temnospondyl placement is kept separate from competing lissamphibian-origin hypotheses.